The introduction of invasive species, destructive burning, and habitat loss from human actions are factors in the decline of Guam’s native plants and animals and the degradation of Guam’s terrestrial ecosystems. In addition, anthropocentric stressors resulting in soil erosion, pollution, and overfishing continue to impact Guam’s coral reefs and coastal areas.

GCMP, in collaboration with Guam’s natural resource agencies, is tasked with protecting coastal habitats through youth and community engagement programs, providing GIS technology and demonstration projects, as well as conducting education and outreach. Through these activities and approaches GCMP will continue preserving Guam’s natural charm and healthy coastal environments.

Mangroves are trees that are found only in the intertidal environment- the area of land exposed during low tide and submersed during high tide.

Mangroves have special roots to help them survive in waterlogged soils and are adapted to live in saltwater.

Most of the mangroves in Guam are found around the southern coast, in Sasa Bay Marine Preserve, and Apra Harbor.

 

 

1. Don’t cut down mangroves: If you or someone you know has mangroves on private property, keep those mangroves standing and don’t cut them down! Not only are the mangroves good for wildlife, they will also help keep the property safer from erosion. In marine preserves it is illegal to cut down mangroves.

• If you are a landowner interested in learning more about managing mangroves or other vegetation on your property with the help of the Guam Department of Agriculture, please contact Cara Lin at cara.lin@doag.guam.gov

 

2. Reduce pollution: Reduce your plastic use and dispose of waste properly. Complex mangrove roots often trap lots of litter inside them, where they can entangle or get ingested by wildlife. Single use plastics, abandoned fishing equipment, oil, and other chemicals are all common pollutants in mangroves.

 

What types of mangroves do we have in Guam?

 

Common name: Grey Mangrove

CHamoru name: No CHamoru name

Scientific name: Avicennia marina

The grey mangrove has roots that come straight out of the ground, also described as “pencil roots”. They often have lighter colored leaves.

These mangroves are especially hardy and resilient in salty conditions.

 

 

 

 

Resources to learn more:

Youtube Videos:

Virtual field-trip: https://www.youtube.com/watch?v=G3eu9Zxr0Iw

Public service announcement (PSA) https://youtu.be/p5aB0yWe5Og

Recorded informational webinar: https://www.youtube.com/watch?v=HBR4IlrhIj4&t=5s

Guampedia mangroves article: https://www.guampedia.com/mangroves-the-forest-between-land-and-sea/

For any questions or more information contact Cara Lin, Guam Department of Agriculture at cara.lin@doag.guam.gov